Harmonic balancer

So I have 74 360 that I have been putting together for my 71 dart. So far I have swapped the cam shaft on the long block and worked my way up. I am at the point of installing the balancer but 0 and my line are off by about one degree (see picture). I made sure my dots lined up on my timing chain as well as well as degreed the cam. I got a degree of 106.5 when it when comp said it should be 106. I figured that this .5 was due to the pointer landing between the lines while I was reading the whee. Long story short is my balancer being off a big deal? Did I do something wrong with the cam install?

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